Rear Brake Nonsense With The Bonneville

It’s the inner lining of the hose that goes and like has been said it acts as a one way valve allowing fluid to flow towards the caliper but then preventing it from flowing back towards the master cylinder thus maintaining pressure and locking the brake on.

 

Here ya go the top picture explains it perfectly.

 

Out of interest, how old is the bike/brake hose ?

 

Every day's, a school day

 

Maybe someone bent the pipe a bit sharper than he should when the caliper was off for service or left the caliper hanging on the hose, both of which can cause failures at a later date for no apparent reason at the time. Or maybe just old age ....

 

I suffer from old age! Therefore I understand perfectly.

 

Steve, what was the colour or condition of the fluid like? Do you think some silly bastard topped up the fluid with something other than brake fluid like an oil product which might have rotted the rubber? I noticed the chain has been left so whoever had it before you might not have give a shit?!

 

I had a similar problem on my Trophy....though it decided to put the rear brake on as I started to enter the Mersey Tunnel. Had to stop a few times to let it cool down. They don't like people stopping in the tunnel, but as I only stopped for seconds and then crept forward at 5mph they said it was quicker to let me keep going than to close the tunnel and rescue me!! Nice gentlemen!
Turned out the pads had been rubbing enough to boil fluid and push the pads on more.
Like you, decided to ride with no rear brake till I got home. Freed everything off...most problem was the master cylinder which had what looks like old goo around the seals. That took a few strip downs to get functional.
I should mention that the bike was bought from a guy who had not used it for at least 4 years.
Still all is well now. Hope your back on the road soon.

 

Sounds about right!

 

Lkin guid.

Hope you put ACF50 on them shiny new parts to keep them looking nice. That's when the wee cloth you use to apply, comes in handy for a quick wipe over swingarm, etc.

ps - you could have cleaned the undertray whilst you were at it !!!